Lex Luthor is one of my favorite characters in Justice League: Crisis on Two Earths. We know Lex Luthor as one of the archenemies of Superman and all the time we are used to see him as an evil person.
The interesting thing about Lex Luthor is that he does not have any special abilities or powers but he is highly intelligent. Luthor is a mad scientist whose goal is to kill superman.
In Justice League: Crisis on Two Earths, we see a good Lex Luthor who is the leader of Justice League in the parallel world where dark versions of the Justice League, called Crime Syndicate, is trying to take over the world.
When Luthor enters the police station, no body notices him but when they notice, they put him into a high security locker room where he sits naked. When Superman meets him, he finds out that he is not the evil Lex Luthor but the good one, whose heart is situated on the other side of the body as he comes from a different world.